My first thought was she is depicting a worshipper. Maybe it's my time in Pentecostal churches.

The website notes they don't know if she is depicting a priestess, a mourner, or a dancer. As I think on that I realize there's no reason to separate these into different categories. Especially given where it was found.

Our modern understanding of dancer implies dance for its own sake, but I suspect this is a dancer with a purpose and meaning.